FIELD: construction.
SUBSTANCE: invention relates to the building materials industry, in particular to production of concrete. Raw mixture for producing concrete contains, wt%: portland cement 17.0–20.0; microsilica 1.0–1.5; superplasticizer C-3 0.7–1.0; quartz sand 62.8–64.5; water 14.0–15.0; sodium ethylsiliconate 1.0–1.5.
EFFECT: reduced cement consumption.
1 cl, 1 tbl
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